package com.lq.controller.user;

import com.lq.service.UserService;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

@WebServlet("/user/checkUserName")
public class CheckUserNameServlet extends HttpServlet {
    UserService userService = new UserService();

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String username = req.getParameter("username");
        Boolean flag = userService.CheckUserName(username);
        PrintWriter writer = resp.getWriter();
        if (flag) {
            writer.write("yes");
        }else{
            writer.write("no");
        }
    }
}
